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Carbonating Keg Lid
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The easiest way to carbonate beer. This is a Cornelius keg lid with built-in carbonation stone! Move the lid from keg to keg to carbonate as needed. Allows you to force carbonate quickly using the attached .5 micron stone with the portability of being able to move the lid from keg to keg. No more hassles of trying to attach and unattach line from the "gas in" dip tube. Simply connect your gas quick disconnect to the included fitting on the lid and allow carbonation to begin. Sometimes also called a carbonater.  

We constructed the lid by welding on a 1/4" barb to the underside of the lid. To that we attached 2' of 1/4" ID tubing that attaches to a .5 micron carbonation stone on the other end. The flexible tubing, as opposed to rigid tubing, allows the lid inserted into any cornelius style keg. The top of the lid has a "gas in" ball lock body connect welded in place that works with the KEG710 and KEG730 gas quick disconnects.

How to use this product:
Beer must be stored cold 34–40°F
1. Preboil the stone for 2–3 minutes before using. This assures you that your stone is sterile and any residual oils have been boiled off.
2. Sanitize the whole keg lid before submersing into your keg filled with beer.
3. Set your PSI on your regulator to 3–4psi and attach your gas in fitting to the body connect on the lid. Leave keg at this pressure for 1 hour.
4. Raise your pressure 2PSI per hour until you reach 10–12psi. Leave it at 10–12psi for 24 hours. Pour a pint and test the carbonation. If you think your beer needs more CO2 leave for another 4–6 hours and have another pint.
5. Remove carbonation lid after carbonation level is satisfactory. Return original keg lid for long term storage.

California Recipients: See Proposition 65 Information
Item # KEG445
Shipping Eligible for Free Shipping Program
Availability California - Out Of Stock
Pennsylvania - In Stock
Weight 1LBS
Community Q&A

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Browse 3 questions Browse 3 questions and 21 answers
Why did you choose this?
MoreFlavor Store
Received good ratings. Looks to have a practical use.
Douglas J on Jun 8, 2018
Quick carbonation of multiple kegs for events
Matthew Z on May 5, 2018
Received good ratings. Looks to have a practical use.
Douglas J on Jun 8, 2018
To force carbonate my beer
Dale P on Jun 8, 2018
Quick carbonation of multiple kegs for events
Matthew Z on May 5, 2018
Always wanted one tried another kind but it didn't fit my legs, hopefully this one will
Nicholas P on Apr 18, 2018
Wanted to try this concept.
Eric R on Apr 18, 2018
to get better carbination of my keg
Tim M on Apr 16, 2018
This can solve the problem of either having to rock a keg on it's side to force carbonate.
Chris R on Apr 4, 2018
Drink beer faster
Roy C M on Mar 16, 2018
already have one adding a second
Michael W H on Mar 8, 2018
For nitro coffee
Chris D on Mar 7, 2018
Needed a better way to carbonate, it came across the bottom of the screen as a suggestion when I was looking for the sparge arm.
Paul B on Feb 14, 2018
New mobile nitro coffee station for event vending
carb nitro
michael s. on Jan 31, 2018
having problems with flat beer
AJ H on Jan 27, 2018
Mike S on Jan 19, 2018
good reviews, appears to be functional and cost effective
Anthony H on Jan 17, 2018
To force carbonate my beer
Dale P on Jun 8, 2018
Always wanted one tried another kind but it didn't fit my legs, hopefully this one will
Nicholas P on Apr 18, 2018
Will this work on smaller kegs? Is tubing connection barbed?
Ryan Bender on Mar 16, 2018
BEST ANSWER: yes, the fitting is barbed. you can shorten it as much as you like. You could also just let the slack coil up in the keg, it will still work 100% the same.
Does this carbonating lid fit torpedo kegs?
MARK DANIELS on May 10, 2018
BEST ANSWER: I purchased this carbonating lid for the 2.5 gallon Torpedo keg that I bought two years back; so, yes, it does fit. It is much more efficient and worth the money.

3.9 / 5.0
46 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
had higher expectations
Did not really change the pour, in fact, its not as creamy as before. We tried adjusting PSI, no real difference.
June 8, 2018
1 month ago
Response from MoreFlavor
How long did you carbonate with the lid?
June 12, 2018
Zach R Staff
If you just can’t wait to drink it and get it just right
I m pretty new to kegging but this seems to do a good job. After quick force carbing a batch I ended up over carbonating it and that was enough to make me want to buy this. Set the psi at the regular amount and just give it a couple days. Seems to work well so far.
May 28, 2018
1 month ago
No seal
Would give more stars but lid did not seal on my 5gal homebrew keg. Used hose on co2 inlet and worked.
March 28, 2018
3 months ago
Used it for nitro coffee and it did help getting the nitrogen to absorb better in solution.
March 20, 2018
3 months ago
great for carbing
This lid works on everything I want to carbonate. I have had about a dozen of them for a few years now and they hold up to constant use. We use them for Co-worker side projects here at Dogfish Head Brewery.
March 16, 2018
6 months ago
Makes carbonation even easier
It used to take 3 days and shaking the keg in order to carbonate my beer. There are posts on the internet that talk about shaking your keg and using high pressure to get 24 hour results but I have found that the CO2 just falls out of suspension. With this carb lid, it works just like a bright tank and I get good carbonation that "sticks" in 24 hours. Love this because I hated waiting for my beer.
February 19, 2018
5 months ago
This is a crazy handy tool. Works very well.
February 10, 2018
5 months ago
Poorly manufactured
Purchased so I could carbonate overnight for bottling with a bottling wand the following day. Per other reviews, yes this does appear to be a cheap Chinese made lid. And just as Jay H commented, I didn't have a problem with the lid sealing, but the CO2 port leaked terribly. I used a generous amount of Teflon tape and still can't get a good seal. In fact, the port leak was so bad it's likely there was never enough psi in the keg for me to know if the lid was sealing or not. I can usually get to 80-90% of the carbonation level I'm looking for in 2-3 days so just going to write this purchase off as another "patience is a virtue" lesson. Another issue was that the tube that the stone is attached to is pretty rigid, and too long. It pushed against the bottom of the keg, and made removing the lid difficult.
Curious that there are so many good reviews...Guess that shows how inconsistent the manufacturing process is with this product.
Fantastic idea, (1 star for that) but unable to recommend.
July 30, 2017
Flat beer to full carbonation within about 12 hours
I've had this for years, and I've never had problems with the lid not sealing properly. If you follow the instructions you will have fully carbonated beer much faster than any other method that I've tried.

April 10, 2017
After a lot of online research and contacting morebeer support (they couldn't really answer my questions), I wrote out detailed instructions for myself on how to accurately and properly use this carbonating lid and stone. This should get your beer perfectly carbonated every time. The problem is that the instructions that come with the lid do not explain wetting pressure, and if followed, you will almost always come away with under-carbonated beer. Wetting pressure is the PSI threshold for bubbles to start coming out of the stone. If the wetting pressure is a typical 4 PSI, and you give the stone 2 PSI of CO2, no bubbles will come out, like they would if you were just adding CO2 to the headspace of the keg via the body connect (IN). THIS IS CRUCIAL. You can find your wetting pressure by submerging the stone in a glass of water (connected to lid line, and gas connected to lid port). Slowly crank the PSI on the regulator until bubbles start coming out - when they start coming out of the stone, note the PSI on the regulator and that is your wetting pressure. I hope this helps!


1. Keg beer and use carbonating stone LID. Use keg lube for rubber gasket on this lid and make sure
to get a good seal before purging and before setting lid with handle lever.

2. Connect CO2 line directly onto the gas-in port on THE KEG, not on the lid. Do this while sealing, purging,
and setting. Set final pressure around 10 psi and leave for 40-48 hours (cold crash). The carbonation stone will not work
well until the beer is at your target temperature.

3. After 40-48 hours, turn off small gas valve (under regulator), but do not disconnect gas line from keg (yet). SLOWLY bleed
CO2 pressure from keg until there is no pressure. Now, purge gas from REGULATOR itself with the regulator's pressure relief
valve, and then set regulator to about 4 psi. Now open small gas valve to let 4 psi of gas enter keg (keg body connect still,
NOT lid port to carbonation stone). Slowly purge keg a few times with this 4 psi. After purging, let 4 psi sit for 5 minutes.

4. Now, with 4 psi in the headspace of the keg, first close the small gas valve and disconnect gas from keg. Now completely
purge the gas from the REGULATOR and turn regulator NOB to the left so zero gas is entering/will enter regulator.

5. Turn on small gas valve (no CO2 will enter line) and connect the gas to the LID PORT (to carb stone).

6. Slowly (take about 1 minute to do this) turn regulator NOB to the right until you hit 4 psi. *This is the wetting pressure for my
stone, yours may be different, but is likely around 4 psi* Let sit for 1 minute. After 1 minute, raise to 6 psi. Leave at 6 psi for 1
hour (and check a couple times in the first 10 minutes to make sure it is holding at 6 psi).

7. After 1 hour at a steady 6 psi, slowly raise to 8 psi. Do this every hour until the final desired psi is reached.
The wetting pressure of my carbonation stone is roughly 4 psi, so for example, if you want to reach 12 psi @ 40
degrees F, you will need the final psi on the regulator to be 16 psi (12 psi + 4 psi wetting pressure).

8. Leave at final PSI for 3 full days (I do this to be safe and let it age a bit more, but you should at least leave for 36 hours IMO),
and check periodically to make sure the psi is holding.

9. After 3 days (or my recommended minimum of 36 hours), turn off small gas valve and purge the REGULATOR of CO2 (not the
keg). Turn nob to the left so that no gas will enter the regulator or line. Disconnect the gas line from the KEG LID PORT. Turn
on the small gas valve and connect gas line to KEG BODY CONNECT (IN). Check regulator gauge - make sure it reads the
correct PSI you were aiming for. If it was 16 psi when connected to the KEG LID PORT (carb stone), it should now read right
around 12 PSI when connected to the KEG BODY CONNECT (IN). If this is the case, good job! It worked.

10. Now slowly bleed the CO2 from the keg and replace the carbonating lid with a normal keg lid (again use keg lube
on rubber gasket of normal lid). Seal lid and purge CO2 a few times to be safe. Set Regulator at desired PSI -
which would be 12 PSI from our previous example. Let sit at 12 PSI for 2 full days with normal lid on (again, this is my safe
personal preference, not necessary).

11. After 2 days, connect the LIQUID OUT LINE and pour a pint! Check for correct carbonation. If carbonation and taste
are both good, beer is ready to drink and bottle!

Notes: I wrote these instructions out in such a way that you might say "duh" or "you don't need to explain that part" - but I wanted
it to be comprehensive because every step is important and generally it's just good to have detailed notes. You also
might be thinking "jeez, this makes it seem very difficult and cumbersome, should I even use one of these?" Well, once
you've carbonated this way once or twice, I'd be surprised if you still wanted to use the "set and forget" method or the
method of cranking up the PSI to 30 and shaking. This is how commercial breweries carbonate their beer (on a larger
scale) and it's well worth learning and using this method. It will become easy as cake and satisfying after the first 1-2
attempts. Small bubbles, perfect carbonation in 4-6 days from initial kegging, and professional. You can also have
the beer carbonated in just 3 days as well using these instructions by just cutting down on cold crash time,
stone carbonating time, and by not replacing lid with normal lid. I just prefer switching to a normal lid for longer term
storage. Good Luck!


February 26, 2017